import Vue from "vue";
import Router from "vue-router";

Vue.use(Router);

/* Layout */
import Layout from "@/layout";

/* Router Modules */
import componentsRouter from "./modules/components";
import chartsRouter from "./modules/charts";
import tableRouter from "./modules/table";
import nestedRouter from "./modules/nested";

/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']    control the page roles (you can set multiple roles)
    title: 'title'               the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
    noCache: true                if set true, the page will no be cached(default is false)
    affix: true                  if set true, the tag will affix in the tags-view
    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
  }
 */

/**
 * constantRoutes
 * a base page that does not have permission requirements
 * all roles can be accessed
 */
export const constantRoutes = [{
        path: "/",
        component: Layout,
        redirect: "/userManage",
        children: [{
            path: "/userManage",
            component: () =>
                import ("@/views/userManage/index"),
            name: "userManage",
            meta: { title: "用户管理", icon: "dashboard", affix: true }
        }]
    },
    {
        path: "/redirect",
        component: Layout,
        hidden: true,
        children: [{
            path: "/redirect/:path(.*)",
            component: () =>
                import ("@/views/redirect/index")
        }]
    },
    {
        path: "/login",
        component: () =>
            import ("@/views/login/index"),
        hidden: true
    },
    {
        path: "/auth-redirect",
        component: () =>
            import ("@/views/login/auth-redirect"),
        hidden: true
    },
    {
        path: "/404",
        component: () =>
            import ("@/views/error-page/404"),
        hidden: true
    },
    {
        path: "/401",
        component: () =>
            import ("@/views/error-page/401"),
        hidden: true
    },
    {
        path: "/dashboard",
        component: Layout,
        // redirect: '/dashboard',
        children: [{
            path: "/dashboard",
            component: () =>
                import ("@/views/dashboard/index"),
            name: "dashboard",
            meta: { title: "dashboard", icon: "dashboard", affix: true }
        }]
    },
    {
        path: "/documentation",
        component: Layout,
        children: [{
            path: "index",
            component: () =>
                import ("@/views/documentation/index"),
            name: "Documentation",
            meta: { title: "Documentation", icon: "documentation", affix: true }
        }]
    },
    {
        path: "/guide",
        component: Layout,
        redirect: "/guide/index",
        children: [{
            path: "index",
            component: () =>
                import ("@/views/guide/index"),
            name: "Guide",
            meta: { title: "Guide", icon: "guide", noCache: true }
        }]
    },
    {
        path: "/profile",
        component: Layout,
        redirect: "/profile/index",
        hidden: true,
        children: [{
            path: "index",
            component: () =>
                import ("@/views/profile/index"),
            name: "Profile",
            meta: { title: "Profile", icon: "user", noCache: true }
        }]
    }
];

/**
 * asyncRoutes
 * the routes that need to be dynamically loaded based on user roles
 */
export const asyncRoutes = [{
        path: "/permission",
        component: Layout,
        redirect: "/permission/page",
        alwaysShow: true, // will always show the root menu
        name: "Permission",
        meta: {
            title: "Permission",
            icon: "lock",
            roles: ["admin", "editor"] // you can set roles in root nav
        },
        children: [{
                path: "page",
                component: () =>
                    import ("@/views/permission/page"),
                name: "PagePermission",
                meta: {
                    title: "Page Permission",
                    roles: ["admin"] // or you can only set roles in sub nav
                }
            },
            {
                path: "directive",
                component: () =>
                    import ("@/views/permission/directive"),
                name: "DirectivePermission",
                meta: {
                    title: "Directive Permission"
                        // if do not set roles, means: this page does not require permission
                }
            },
            {
                path: "role",
                component: () =>
                    import ("@/views/permission/role"),
                name: "RolePermission",
                meta: {
                    title: "Role Permission",
                    roles: ["admin"]
                }
            }
        ]
    },

    {
        path: "/icon",
        component: Layout,
        children: [{
            path: "index",
            component: () =>
                import ("@/views/icons/index"),
            name: "Icons",
            meta: { title: "Icons", icon: "icon", noCache: true }
        }]
    },

    /** when your routing map is too long, you can split it into small modules **/
    componentsRouter,
    chartsRouter,
    nestedRouter,
    tableRouter,

    {
        path: "/example",
        component: Layout,
        redirect: "/example/list",
        name: "Example",
        meta: {
            title: "Example",
            icon: "el-icon-s-help"
        },
        children: [{
                path: "create",
                component: () =>
                    import ("@/views/example/create"),
                name: "CreateArticle",
                meta: { title: "Create Article", icon: "edit" }
            },
            {
                path: "edit/:id(\\d+)",
                component: () =>
                    import ("@/views/example/edit"),
                name: "EditArticle",
                meta: {
                    title: "Edit Article",
                    noCache: true,
                    activeMenu: "/example/list"
                },
                hidden: true
            },
            {
                path: "list",
                component: () =>
                    import ("@/views/example/list"),
                name: "ArticleList",
                meta: { title: "Article List", icon: "list" }
            }
        ]
    },

    {
        path: "/tab",
        component: Layout,
        children: [{
            path: "index",
            component: () =>
                import ("@/views/tab/index"),
            name: "Tab",
            meta: { title: "Tab", icon: "tab" }
        }]
    },

    {
        path: "/error",
        component: Layout,
        redirect: "noRedirect",
        name: "ErrorPages",
        meta: {
            title: "Error Pages",
            icon: "404"
        },
        children: [{
                path: "401",
                component: () =>
                    import ("@/views/error-page/401"),
                name: "Page401",
                meta: { title: "401", noCache: true }
            },
            {
                path: "404",
                component: () =>
                    import ("@/views/error-page/404"),
                name: "Page404",
                meta: { title: "404", noCache: true }
            }
        ]
    },

    {
        path: "/error-log",
        component: Layout,
        children: [{
            path: "log",
            component: () =>
                import ("@/views/error-log/index"),
            name: "ErrorLog",
            meta: { title: "Error Log", icon: "bug" }
        }]
    },

    {
        path: "/excel",
        component: Layout,
        redirect: "/excel/export-excel",
        name: "Excel",
        meta: {
            title: "Excel",
            icon: "excel"
        },
        children: [{
                path: "export-excel",
                component: () =>
                    import ("@/views/excel/export-excel"),
                name: "ExportExcel",
                meta: { title: "Export Excel" }
            },
            {
                path: "export-selected-excel",
                component: () =>
                    import ("@/views/excel/select-excel"),
                name: "SelectExcel",
                meta: { title: "Export Selected" }
            },
            {
                path: "export-merge-header",
                component: () =>
                    import ("@/views/excel/merge-header"),
                name: "MergeHeader",
                meta: { title: "Merge Header" }
            },
            {
                path: "upload-excel",
                component: () =>
                    import ("@/views/excel/upload-excel"),
                name: "UploadExcel",
                meta: { title: "Upload Excel" }
            }
        ]
    },

    {
        path: "/zip",
        component: Layout,
        redirect: "/zip/download",
        alwaysShow: true,
        name: "Zip",
        meta: { title: "Zip", icon: "zip" },
        children: [{
            path: "download",
            component: () =>
                import ("@/views/zip/index"),
            name: "ExportZip",
            meta: { title: "Export Zip" }
        }]
    },

    {
        path: "/pdf",
        component: Layout,
        redirect: "/pdf/index",
        children: [{
            path: "index",
            component: () =>
                import ("@/views/pdf/index"),
            name: "PDF",
            meta: { title: "PDF", icon: "pdf" }
        }]
    },
    {
        path: "/pdf/download",
        component: () =>
            import ("@/views/pdf/download"),
        hidden: true
    },

    {
        path: "/theme",
        component: Layout,
        children: [{
            path: "index",
            component: () =>
                import ("@/views/theme/index"),
            name: "Theme",
            meta: { title: "Theme", icon: "theme" }
        }]
    },

    {
        path: "/clipboard",
        component: Layout,
        children: [{
            path: "index",
            component: () =>
                import ("@/views/clipboard/index"),
            name: "ClipboardDemo",
            meta: { title: "Clipboard", icon: "clipboard" }
        }]
    },

    {
        path: "external-link",
        component: Layout,
        children: [{
            path: "https://github.com/PanJiaChen/vue-element-admin",
            meta: { title: "External Link", icon: "link" }
        }]
    },

    // 404 page must be placed at the end !!!
    { path: "*", redirect: "/404", hidden: true }
];

const createRouter = () =>
    new Router({
        // mode: 'history', // require service support
        scrollBehavior: () => ({ y: 0 }),
        routes: constantRoutes
    });

const router = createRouter();

// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
    const newRouter = createRouter();
    router.matcher = newRouter.matcher; // reset router
}

export default router;